text: import unittest
  import os, sys, inspect
  
  currentdir = os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))
  parentdir = os.path.dirname(currentdir)
  parentdir2 = os.path.dirname(parentdir)
  sys.path.insert(0, parentdir)
  sys.path.insert(0, parentdir2)
  
  
  class Classifiers1DocumentationTest(unittest.TestCase):
      def test_classifiers1documentation(self):
          from pm4py.log.importer import xes as xes_importer
  
          log = xes_importer.import_from_file_xes("inputData\\receipt.xes")
          #print(log.classifiers)
  
          from pm4py.log.util import insert_classifier
  
          log, activity_key = insert_classifier.insert_classifier_attribute(log, "Activity classifier")
          #print(activity_key)
  
          from pm4py.algo.alpha import factory as alpha_miner
  
          net, initial_marking, final_marking = alpha_miner.apply(log, activity_key=activity_key)
  
          from pm4py.log.importer import xes as xes_importer
  
          log = xes_importer.import_from_file_xes("inputData\\receipt.xes")
  
          for trace in log:
              for event in trace:
                  event["customClassifier"] = event["concept:name"] + event["lifecycle:transition"]
  
          from pm4py.algo.alpha import factory as alpha_miner
  
          net, initial_marking, final_marking = alpha_miner.apply(log, activity_key="customClassifier")
  
  if __name__ == "__main__":
      unittest.main()
  